For the 21v cordless drill driver, there are three main options: impact screwdriver, combination drill, and drill screwdriver. We have covered these products in more detail below, as well as a lot of information about their uses, so please continue reading to learn more.
Combi Drill, “Mr. Magnum” can perform many different functions in the world of power tools. These functions range from “hammer function” (very suitable for drilling brown and red plugs in masonry) to “drilling” (allowing you to drill with high-speed steel drills and wood drills). Another function that this multi-function drill can perform is the torque-adjustable “screw drive” that allows you to insert large and small screws. Don’t forget that Speed 1 gives you the highest torque, which is perfect for those long screws!
Combidill is the first choice for any novice power tool because it provides everything you need to get started. ——Usually equipped with 10mm or 13mm keyless chuck. Although combination drills are usually more expensive than traditional drills, if this is your first drill, it is indeed a necessary tool.
These were the first machines to be produced wirelessly and were generally lighter and more compact than the Camby bit. The price of the bit driver is usually lower than that of the Combi bit. If you are just looking for a machine that can drill holes in metal and wood and drive screws, then this is a very suitable choice. The drill driver usually also comes with a 10 mm, or 13 mm keyless chuck.
Remember, if you buy a brand, you can always use the same battery in most of its cordless series, so you can ensure the best price/performance ratio!
The impact driver does not require screws, because this type of machine produces much higher torque than drill bits and combination drill bits. This is achieved through strong rotational force and downward force. If you imagine that when you turn the screw, you will hit the back of the screwdriver with a hammer and hit the side of the drill you are using with another hammer. This will give you a good understanding of how the impact screwdriver reduces the user’s Workload and allows them to drive larger screws and bolts.
It is recommended that you use impact-driven drills in these machines because traditional drills are not designed to withstand the penalties caused by these machines. Unlike combination drills and drill drives, this special type of machine is not equipped with traditional chucks because they are designed to use 1/4.
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